806563317 has 16 divisors (see below), whose sum is σ = 1301346432. Its totient is φ = 433781760.

The previous prime is 806563313. The next prime is 806563361. The reversal of 806563317 is 713365608.

806563317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806563317 - 2² = 806563313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806563313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129284 + ... + 1129997.

It is an arithmetic number, because the mean of its divisors is an integer number (81334152).

Almost surely, 2^806563317 is an apocalyptic number.

It is an amenable number.

806563317 is a deficient number, since it is larger than the sum of its proper divisors (494783115).

806563317 is a wasteful number, since it uses less digits than its factorization.

806563317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259308.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 806563317 is about 28400.0583978273. The cubic root of 806563317 is about 930.8495405213.

The spelling of 806563317 in words is "eight hundred six million, five hundred sixty-three thousand, three hundred seventeen".